In one aspect, a split forehead strap of headgear is provided. In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head is provided. The headgear includes a first side member on a first side of the headgear, a second side member on a second side of the headgear, and a forehead strap coupled to and extending between the first and second side members. The forehead strap is configured to engage a wearer's forehead with the headgear worn by a wearer. The forehead strap includes an upper member and a lower member spaced-apart from the upper member along at least a portion of the lower member to provide a cavity between the upper and lower member. In one aspect, a protective headwear is provided and includes a forehead strap defining a longitudinally extending cavity that alters in thickness.